My vote goes to the Sirrus, just bought a base Sirrus and Vita for my wife and I to do some light trail riding. Didn't want to take the Roubaix or Dolce road bikes on the trail. The Sirrus is really quick and handles well too.
Both have been on crushed limestone and dirt trails, nice change from the road.
I say go Specialized, kinda biased though.
Enjoy